Monday, May 30, 2011

Scp command line use and afew sample

Example syntax for Secure Copy (scp)
What is Secure Copy?

scp allows files to be copied to, from, or between different hosts. It uses ssh for data transfer and provides the same authentication and same level of security as ssh.
Copy the file "foobar.txt" from a remote host to the local host

$ scp /some/local/directory

Copy the file "foobar.txt" from the local host to a remote host

$ scp foobar.txt

Copy the directory "foo" from the local host to a remote host's directory "bar"

$ scp -r foo

Copy the file "foobar.txt" from remote host "" to remote host ""

$ scp \

Copying the files "foo.txt" and "bar.txt" from the local host to your home directory on the remote host

$ scp foo.txt bar.txt

Copy multiple files from the remote host to your current directory on the local host

$ scp\{a,b,c\} .

$ scp\{foo.txt,bar.txt\} .

scp Performance

By default scp uses the Triple-DES cipher to encrypt the data being sent. Using the Blowfish cipher has been shown to increase speed. This can be done by using option -c blowfish in the command line.

$ scp -c blowfish some_file

It is often suggested that the -C option for compression should also be used to increase speed. The effect of compression, however, will only significantly increase speed if your connection is very slow. Otherwise it may just be adding extra burden to the CPU. An example of using blowfish and compression:

$ scp -c blowfish -C local_file

Tuesday, May 24, 2011

How to intall Mrtg on Slackware 13.1

in this section we learn how to install MRTG program that help us to see network devices how use bandwidth,CPU usage ....
we need to configure and run 3 service that work directly by Mrtg : apache web server -running SNMP at least a password between MRTG <==(Community)==> SNMP that call it community!
Step I

for running apache web server :
1)chmod +x /etc/rc.d/rc.httpd
2) /etc/rc.d/rc.httpd start
3) ps -A | grep httpd <== check truely running
Step II
in this step running SNMP ( Simple Network Monitoring Protocol )
on command line Write :
1)snmpconf push Enter
1.a-chose 1 (snmpd.conf)
1.b-chose 1 (Access control Setup)
1.c-chose 3 (snmp V1/V2 Read only community )
{tell which IP can access snmp :}
1.d- chose OIO and enter
for exit this part : finished,finished and Quit
now Move snmp.conf /etc/snmp
mv snmp.conf /etc/snmp
chmod +x /etc/rc.d/rc.snmpd
/etc/rc.d/rc.snmpd start
ps -A | grep snmp
Step III
Install MRTG with Source and compile it ;)
1-download it

Wednesday, May 18, 2011

how to install Utorrent on Slackware 13.1

really simple :
Install "uTorrent" on terminal

1. get the file:

2. extract it
tar zxvf utorrent-server-3.0-25053.tar.gz

3. go into the folder created
cd utorrent-server-3.0-21701

4. run the program

5. open a website to the machine on port 8080

6. u:admin pass: by default does not have
Enjoy it